Draw-bar rigging.



" No. 7|4,sa9. Patented Dec. 2,1902.

n. wqrox. DRAW BAR RIGGI NG.

(Application M b 902) (No Model.) 2 Sheets-Sheet l V p 7 i s ll/11111114Y VI/II MIMI v No. 7|4,689.

Patented 'nec. 2,1902,

, n. w. FOX. DRAW BAR RIGGlNG.

(Application filed Feb. 8, 1902.1

2 Sheets-:Sheet 2.

(No Model.)

swanlioz Emmi 351;

UNITED STAT S PATENT OFFICE.

RIGHARD WATSON FOX, OF ALTOONA, PENNSYLVANIA.

DRAW-BAR RIGGING.

SPECIFICATION formingpart of Letters Patent No. 714,689, dated December2, 1902. Application filed February 8, 1902. Serial No. 93,167. (Nomodel.)

- following is a specification.

This invention is an improved draw-bar rigging, the object of theinvention being to provide a much simpler and stronger form of riggingthan those now in use, and while my invention is particularly adaptedfor freight and heavy-draft cars it can be applied with equal facilityto passenger-coaches.

One object of the invention is to provide a draw-bar rigging in whichthe parts shall be so constructed and arranged that incase any or all ofthem should break it will be im-,

possible for them to fall beneath the car or interfere with its travel.

Another object of the invention is to pro-- vide a rigging which can bequickly and easily adjusted for the purpose of replacing any of theparts.

With these various objects in view the invention consists, essentially,in arranging two bearing-plates in parallel order beneath the timbers ofthe car, said bearing-plates being slotted horizontally and alsoprovided with apertures, arranging a draft-bar between the said plates,said draft-bar having laterallyprojecting studs adapted to slide in thehorizontal slots, a bearingblock arranged also between the plates andhaving laterally-projecting studs adapted to rest in the apertures inthe plates, said block having a central bore through which therearwardlyprojecting shank of the draw-bar passes, said shank beingthreaded atits rear end for the purpose of receiving the jam-nuts, adraw-spring surrounding the shank and bearing against the rear face ofthe bearing-block and a cushionspring interposed between the draw-barand forward side of the bearing-block, the forward and of the draw-barbeing shaped to receive the rear end of thedraw-head.

The invention consists also in certain details of construction andnovelties of combination hereinafterfully described, and pointed out inthe claims.

In the drawings forming part of this specification, Figure 1 is a viewshowing the practical application of my invention,the under side of acar being shown in perspective. Fig. 2 is a longitudinal sectionalview,lthe draw-bar shank, draw spring, and jam nuts being shown inelevation. Fig. 3 is a sectional plan view. Fig. 4 is a transversesection on the line 4. 4 of Fig. 3. Fig. 5 is a detail perspective viewof one of the bearing-plates. Fig. 6 is a detail perspective view of thedraw-bar and the rearwardly-projecting shank. Fig. 7 is a detailperspective view of the combined guide and bearing-block. Fig. 8 is aperspective View illustrating the rear end of the drawhead. Fig. 9 is asectional perspective view illustrating the forward end of the draw-bar,into which the rear end of the draw-head fits. Figs. 1O, 11, and 12 showmy invention adapted to the J anney coupler.

In constructing a draw-bar rigging in accordance with my invention .Iemploy two bearing plates or castings A, having the upper and lowerflanges A, throughwhich the fastening-bolts A are passed and by means ofwhich the bearing plates or castings are securely fastened to the bottomtimbers of the car. These plates or castings A are arrangedlongitudinally beneath the car and in parallel order, as most'clearlyshown, and the bottom plate B is securely connected to the under sidesof said plates or castings, the bolts A serving to fasten the bottomplate to the said bearing plates or castings, as most clearly shown inFigs. 2 and 3. The bearing plates or castings A are formed withhorizontal slots A adjacent to their forward ends and circular aperturesA adjacent to their rear ends, the said slots and openings beingreinforced by means of outwardly-projecting flanges A said flangesforming broad bearings for the parts hereinafter referred to. Thedraft-bar 0 is arranged between the bearing plates or castings A and isprovided with laterally-projecting studs 0, which are adapted to work inthe horizontal slots A and-bearupon the flanges A The draft-bar O isalso formed with a rearwardly-projecting shank orbar C the rear end ofwhich is threaded, .as most clearly shown at C and the forward end ofthe draw-bar is formed with a T-shaped socket 0 into which fits theT-shaped end D of the draw-head D, said end D being wedge-shaped, asshown, in order to interlock with the socket G which is made tapering,as most clearly shown in Figs. 2 and 9. A combined guide andbearing-block E is arranged also between the bearing plates and castingsA, said block E having laterally-projecting studs E, which are adaptedto fit into the apertures A and bear upon the surrounding flange. Thisblock E is also formed with a central bore E through which the shank Oof the draw-bar passes. A draft-sprin g F surrounds the shank or rod itsforward end bearing against the rear end of the block E, its rear endbeing held in place by means of a plate I F, which is secured upon thethreaded end of the shank or bar by means of the jam-nuts F and F saidjam-nuts being screwed upon the threaded ends C This draft-spring Freceives the initial strain which is thrown upon the block E, andinasmuch as the-said block is very strong and also provided with stoutstuds E, which rest upon reinforced flanges A, it will be readilyunderstood that my form of rigging is particularly adapted for receivingsevere strains, such as are caused by pulling heavy loads or ascendingsteep grades. A cushion-spring G surrounds the shank or rod 0 betweenthe rear end of the draw-bar O and the forward end of the guide orbearing-block E, the'purpose of said spring being to take up the jarincidental to coupling when.

two draw-heads are brought together. A stout eyebolt H is inserted inthe bottom of the draw-bar 0, adjacent to the forward end, 1 for thepurpose of connecting a chain or other form of coupling device theretoin case the draw-head should become damaged, and in order to permit thelongitudinal movement of the draw-bar bearing said eyebolt I provide' alongitudinal slot H in the bottom plate Band in which the said eyeboltworks during the longitudinal movement of the draw-bar. In case thedraw-head should become damaged and it should become necessary to attach another one the jam-nuts are loosened sufficiently to permit theforward end of the draw-bar to protrude beyond the bearingplates, andthe draw-bar can then be quickly and easily attached or detached, asdesired. In case the draw-barshould become damaged it can be quickly andeasily removed and another one inserted, and inasmuch as each and everypart of my rigging is supported above the bottom plate B and also formedwith lateral bearings it will be seen that it will be impossible for anyof the parts to fall beneath the car.

In Figs. 10, 11, and 12 I have shown my invention adapted to theordinary form of J anney coupler, and in such construction the draw-headD is provided with rearwardly-projecting pivot-ears D which rest aboveand below the forwardly-projecting portion D of the draft-bar, saidportions being connected by means of a bolt B The end of theforwardly-projecting portion D is bifurcated, as shown at D, and securedin such bifurcation arethe diverging springs D which project forwardlyinto the draw-head and serve to normally hold the head in its properposition for coupling; but the elasticity of these springs permits thehead to turn upon the bolt when rounding curves. The generalarrange- 1.In a draw-bar rigging, the combination with the bearing plates or guidessecured to the under side of the car arranged parallel with each other,and having longitudinal slots therein; of a combined bearingblock andguide pivoted in said bearing-plates, and having a circular hole oropening therethrough, a draw-bar having a rearwardlyprojecting shankpassing through and guided by said circular opening in saidbearingblock, lugs thereon sliding in said longitudinal slots in saidbearing-plates, and a drawhead or coupling member at one end thereof;and a draft-sustaining spring coiled around said shank and interposedbetween said bearing-block and a shoulder or collar on said shank,substantially as described.

2. In a draw-bar rigging, the combination with the bearing plates orguides secured to the under side of the car arranged parallel with eachother, and having longitudinal slots therein, of a combinedbearing-block and guide pivoted in said bearing-plates, and having acircular hole or opening therethrough, a draw-bar having arearwardlyprojecting shank passing through and guided by said circularopening in said bearingblock, lugs thereon sliding in said longitudi nalslots in said bearing-plates, and a drawhead or coupling member at oneend thereof, a draft-sustaining spring coiled around said shank andinterposed between said bearingblock and a shoulder or collar on saidshank, and a cushion spring interposed between said draw-bar andbearing-block, substan-- tially as described.

3. In a draw-bar rigging, the combination with the bearing plates orguides secured to the under side of the car arranged parallel with eachother, and having longitudinal slots therein, of a combinedbearing-block and guide pivoted in said bearing-plates, and having acircular hole or opening therethrough, a draw-bar having-arearwardly-proj ecting shank passing through and guided by said circularopening in said bearing-block, lugs therein sliding in said longitudinalslots in said bearing-plates, and a T-shaped slot or socket in theforward end thereof, a drawhead or coupling having a T-shaped rear endadapted to engage in said slot or socket in the draw-bar, and adraft-sustaining spring coiled around said shank and interposed betweensaid bearing-block and a shoulder or collar on said shank, substantially.as described.

ICC

IIO

4. In a draw-bar rigging the combination with the bearing plates orguides secured to the under side of the car arranged parallel with eachother, and having longitudinal slots therein, of a combinedbearing-block and guide pivoted in said bearing-plates and having acircular hole or opening therethrough, a'draw-bar having arearwardlyprojecting shank passing through and guided by said circularopening in said bearingblock, lugs thereon sliding in said longitudinalslots in said bearing-plates, and a T- shaped slot or socket in theforward end thereof, a draw-head or coupling having a T- shaped rearend, adapted to engage in said slot or socket in the draw-bar, adraftsustaining spring coiled around said shank and interposed betweensaid bearing-block, and a shoulder or collar on said shank, andacushion-springinterposed between said drawbar and bearing-block,substantially as described.

5. In a draw-bar rigging, the combination with the bearing plates orguides secured to the under side of the car, arranged parallel with eachother, and having longitudinal slots therein, of a combinedbearing-block and guide pivoted in said bearing-plates, and having acircular opening or hole therethrough, a draw-bar having arearwardlyprojecting shank passing through and guided by said circularopening in said bearingblock, the end of said shank being screwthreadedand having jam-nuts thereon, lugs on said draw-bar, sliding in saidlongitudinal slots in said bearing-plates, and a draw-head or couplingmember at one end of saiddrawbar, and a draft-sustaining spring coiledaround said shank and interposed between said bearing-block and thejam-nuts on said shank, substantially as described.

RICHARD WATSON FOX.

Witnesses:

P. M. CANTY, GEO. A. Do BYNE.

